APA-Zitierstil (7. Ausg.)

Butler, G. D. (1950). Playgrounds: Their administration and operation (Rev. ed.). Barnes.

Chicago-Zitierstil (17. Ausg.)

Butler, George D. Playgrounds: Their Administration and Operation. Rev. ed. New York: Barnes, 1950.

MLA-Zitierstil (9. Ausg.)

Butler, George D. Playgrounds: Their Administration and Operation. Rev. ed. Barnes, 1950.